* feat(plugins): orca/testing kit, `orca plugin test` and `orca plugin check`
- `orca/testing` mounts a components panel in plain Node (node:test, vitest, bun) with the real
runtime and Orca's own tree validator: find by text/role/label/testId, press/type/submit/toggle/
select that resolve once the panel settles, tree() snapshots, errors (with stacks) and warnings,
persisted state (with stored() for migrations), emit/setVisible/rerender, and unmount running
setup cleanup. It re-exports node:test and strict assert so tests type-check without @types/node.
- mockHost refuses what Orca refuses with the same codes (surface, capability from the manifest,
params, a gesture method without a press), checks configured results against the host API, and
records calls.
- `orca plugin test [dir]` discovers *.test.ts(x) and runs them with node:test through Node module
hooks that resolve `orca` like the guest's import map and transpile/resolve sources exactly as
Orca's build-less loader, or with the plugin's own vitest via a generated config.
- `orca plugin check [dir]` validates, then renders each components panel once and reports what it
threw (file:line), layouts Orca would refuse, and props it would drop.
- The kit, hooks and register entry ship minified beside orca-runtime.mjs and are unpacked from asar;
typings land in .orca/types/orca-testing. The components template and hello-tsx get sample tests.
- ui.error carries an optional stack; a new runtime starts every atom from its initial value; the
hydration fallback timer is cleared once hydrated.
* plugins: run plugin test/check on a system Node or Orca's own, and warn they are unsandboxed
* test(plugins): run the shipped example plugin tests from the unit suite